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Acidic nickel sulfate solutions are generated in a large scale in the hydro- and pyrometallurgical industries. They are also produced in many industrial processes from nickel refining to surface finishing of metals by electroplating. Acid mine drainage has long been a significant environmental problem in coal and metal mining. The demand of recycling and reuse of materials has increased significantly...
Acidic ferrous sulphate solutions are generated in a large scale in the hydro- and pyrometallurgical industries. They are also produced in the steel industry and titanium dioxide production. Acid mine drainage has long been a significant environmental problem in the coal and metal sulphide mining. The demand of recycling and reuse of materials has increased significantly especially in EU. Dumping...
The H 2 O–MnSO 4 system has been modelled using the Pitzer activity coefficient approach over a temperature interval of −11–175°C and in concentrations from pure water to the solubility limit of manganese sulfate hydrates, the maximum MnSO 4 molality being 4.26mol/kg at the MnSO 4 ·5H 2 O(s) to MnSO 4 ·H 2 O(s) transition temperature of 23.9°C...
The H 2 O–FeSO 4 system has been modelled using the Pitzer activity coefficient approach over a temperature interval of −2–220 °C and in concentrations from pure water to the solubility limit of ferrous sulfate hydrates, the maximum FeSO 4 molality being 3.58 mol/kg at the FeSO 4 ⋅7H 2 O(s) to FeSO 4 ⋅H 2 O(s) transition temperature of 56.5 °C...
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